Exhaust for x35i M Sport & M Performance Exhaust questions and rebates

[MJX5]

Questions...
Which one are you using that gives the big roar sound?

On the M Performance Exhaust:

If you buy it on line (not from shopbmwusa.com directly) and after a company installs it (like a loacl exhaust shop), does it void your overall warranty or how does it impact it?

If you buy it online (not from shopbmwusa.com directly) and have the *BMW dealership* install it, does it void your overall warranty or how does it impact it?

I am assuming that if you dont buy it from from shopbmwusa.com, it is not eligible for the BMW rebate Visa they are now offering right?
http://www.shopbmwusa.com/PRODUCT/46...EXHAUST-SYSTEM

[Johndong888]

I think the warranty is on the parts regardless of who installs it.

The rebate is valid from any BMW dealership parts department.

Originally Posted by MJX5

Questions...
Which one are you using that gives the big roar sound?

On the M Performance Exhaust:

If you buy it on line (not from shopbmwusa.com directly) and after a company installs it (like a loacl exhaust shop), does it void your overall warranty or how does it impact it?

If you buy it online (not from shopbmwusa.com directly) and have the *BMW dealership* install it, does it void your overall warranty or how does it impact it?

I am assuming that if you dont buy it from from shopbmwusa.com, it is not eligible for the BMW rebate Visa they are now offering right?
http://www.shopbmwusa.com/PRODUCT/46...EXHAUST-SYSTEM